324444440 has 64 divisors (see below), whose sum is σ = 772623360. Its totient is φ = 122362240.

The previous prime is 324444413. The next prime is 324444443. The reversal of 324444440 is 44444423.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324444443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62837 + ... + 67803.

It is an arithmetic number, because the mean of its divisors is an integer number (12072240).

Almost surely, 2^324444440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 324444440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386311680).

324444440 is an abundant number, since it is smaller than the sum of its proper divisors (448178920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

324444440 is a wasteful number, since it uses less digits than its factorization.

324444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5072 (or 5068 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 324444440 is about 18012.3413247695. The cubic root of 324444440 is about 687.1424494516.

Adding to 324444440 its reverse (44444423), we get a palindrome (368888863).

The spelling of 324444440 in words is "three hundred twenty-four million, four hundred forty-four thousand, four hundred forty".